All the information you need to solve the mystery is in the puzzle story; everything you need to deduce, reason and organize your thoughts is in the handy grid below. A great addition to our Perplexors puzzle collection, Grid Perplexors teach kids a step-by-step process that keeps their thinking linear and focused. Great practice for standardized tests that reward logic skills. Paperback; 50 puzzles on 56 pages. Recommended Ages: Ages 12 and up

I love these books because there are easy levels to build confidence and challenging levels for students who have mastered the easier levels. I really enjoy seeing the satisfaction on the faces of students who have been struggling when they solve their first problem. All of a sudden they want more!